On the drawing there are outlets on the underside of the trailer for on- and off-loading the product.
Depending on the types of product being carried, the MC-306 is divided into compartments.
In addition to the outlets on the bottom, you can see vents and caps on the top side of the trailer which
can fail or leak as a result of rollover accidents. Properly marked 10¾-inch placards should be visible on
all four sides making identification of the product easier.